US 12,293,558 B2
Meter recognition apparatus, meter monitoring system, and monitoring method therefor
Qian Ha, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/790,362
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 5, 2021, PCT No. PCT/CN2021/104523
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2022/042045, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 202010890099.2 (CN), filed on Aug. 28, 2020.
Prior Publication US 2023/0045188 A1, Feb. 9, 2023
Int. Cl. G06V 10/25 (2022.01); G08C 17/02 (2006.01)
CPC G06V 10/25 (2022.01) [G08C 17/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A meter monitoring system, comprising:
at least one meter recognition apparatus, the meter recognition apparatus including:
an image acquirer, the image acquirer being configured to acquire images of a display side of a monitoring meter at set time intervals;
a processor coupled to the image acquirer, the processor being configured to determine, based on an image processing algorithm, monitoring data displayed by the monitoring meter according to an image of the images acquired by the image acquirer;
a wireless transceiver coupled to the processor, the wireless transceiver being configured to send the monitoring data determined by the processor to a wireless gateway;
a monitoring device; and
the wireless gateway, the wireless gateway being configured to transmit the received monitoring data to the monitoring device;
wherein the image acquirer includes:
a camera; and
at least two light sources each disposed on a periphery of the camera and arranged at intervals sequentially in a circumferential direction of the camera; and
the image acquirer is configured to:
take a picture with the camera in a case where only one of the at least two light sources is turned off and capture a spot-free region corresponding to the turned-off light source of the picture, until spot-free regions corresponding to the light sources are obtained, wherein each turned-off light source corresponds to a different spot-free region; and
combine all the spot-free regions to generate the image of the display side of the monitoring meter.